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Block 3: MSK > A+P Lab: Muscle List > Flashcards

A+P Lab: Muscle List Flashcards

1
Q

Buccinator: Function

A

Compresses cheek

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2
Q

Frontalis : Function

A

Raises eyebrows and wrinkles forehead.

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3
Q

Epicranial aponeurosis: Function

A

serves as the site of origin, and a site of insertion for muscles which make up the occipitofrontalis

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4
Q

Orbicularis occuli: Function

A

Closes eyelids.

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5
Q

Masseter: Function

A

Elevates mandible; assists in protraction of mandible.

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6
Q

Mentalis: Function

A

Elevates and protrudes the lower lip.

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7
Q

Zygomaticus: Function

A

Elevates angle of mouth.

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8
Q

Occipitalis: Function

A

Draws scalp backwards.

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9
Q

Orbicularis oris: Function

A

Compresses and protrudes lips.

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10
Q

Temporalis: Function

A

Elevates and retracts mandible.

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11
Q

Splenus capitus and collis: Function

A

Rotates and extends head.

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12
Q

Scalenes (posterior): Function

A

Laterally flexes neck; elevates second rib

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13
Q

Semispinalis capitis and cervicus: Function

A

Extends and rotates the head.

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14
Q

Splenius colli: Function

A

Extends, rotates, & laterally flexes the neck at cervical vertebral joints.

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15
Q

Sternohyoid: Function

A

Depresses hyoid bone.

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16
Q

Platysma: Function

A

Tenses skin of neck; depresses mandible.

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17
Q

Sternocleidomastoid: Function

A

Flexes and laterally flexes neck; rotates head.

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18
Q

Scalenes (anterior): Function

A

Flexes, rotates, & laterally flexes neck; elevates first rib.

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19
Q

Sternothyroid: Function

A

Depresses larynx.

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20
Q

External intercostals: Function

A

Elevate ribs; provide structural support to intercostal spaces.

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21
Q

Innermost intercostals: Function

A

Elevates ribs.

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22
Q

Internal intercostals: Function

A

Depress ribs; provide structural support to intercostal spaces.

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23
Q

Pectoralis minor: Function

A

Protracts & downwardly rotates pectoral (shoulder) girdle

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24
Q

Serratus anterior: Function

A

Protracts & upwardly rotates pectoral (shoulder) girdle

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25
Q

Subclavius: Function

A

Stabilizes clavicle.

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26
Q

Latissiumus dorsi: Function

A

Adducts, medially rotates, & extends arm at glenohumeral joint.

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27
Q

Levatores breves and longi costarum: Function

A

Elevate ribs

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28
Q

Levator scapulae: Function

A

Elevates & downwardly rotates shoulder; extends & laterally flexes neck at cervical vertebral joints.

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29
Q

Multifidus: Function

A

Extends neck & trunk; stabilizes vertebral column.

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30
Q

Quadratus lumborum: Function

A

Extends & laterally flexes trunk; stabilizes 12th rib during inspiration.

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31
Q

Rhomboid major: Function

A

Retracts & downwardly rotates pectoral (shoulder) girdle

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32
Q

Rhomboid minor: Function

A

Retracts & downwardly rotates pectoral (shoulder) girdle

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33
Q

External intercostals: Function

A

Elevate ribs; provide structural support to intercostal spaces.

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34
Q

Innermost intercostals: Function

A

Elevates ribs

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35
Q

Internal intercostals: Function

A

Depress ribs; provide structural support to intercostal spaces.

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36
Q

Pectoralis minor: Function

A

Protracts & downwardly rotates pectoral (shoulder) girdle

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37
Q

Serratus anterior: Function

A

Protracts & upwardly rotates pectoral (shoulder) girdle

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38
Q

Subclavius: Function

A

Stabilizes clavicle.

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39
Q

Latissiumus dorsi: Function

A

Adducts, medially rotates, & extends arm at shoulder joint.

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40
Q

Levatores breves & longi costarum: Function

A

Elevate ribs

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41
Q

Levator scapulae: Function

A

Elevates & downwardly rotates shoulder; extends & laterally flexes neck

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42
Q

Multifidus: Function

A

Extends neck & trunk; stabilizes vertebral column.

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43
Q

Quadratus lumborum: Function

A

Extends & laterally flexes trunk; stabilizes 12th rib during inspiration.

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44
Q

Rhomboid major: Function

A

Retracts & downwardly rotates shoulder girdle

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45
Q

Rhomboid minor: Function

A

Retracts & downwardly rotates shoulder girdle

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46
Q

Semispinalis thoracis, cervicis, and capitis: Function

A

Extends & rotates the head, neck & trunk

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47
Q

Serratus posterior inferior: Function

A

Depresses ribs

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48
Q

Serratus posterior superior: Function

A

Elevates ribs

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49
Q

Subcostal muscles: Function

A

Depress ribs

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50
Q

Thoracolumbar fascia: Function

A

vital role in the mechanical stability of the lower back

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51
Q

Trapezius: Function

A

Depresses, retracts & upwardly rotates the shoulder girdle

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52
Q

Erector spinae: Function

A

straightening the vertebral column.

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53
Q

Muscles that make up the erecter spinae?

A
  • Iliocostalis colli, lumborum, thoracis
  • Longissimus capitus, cervicis, thoracis
  • Spinalis capitis, cervicis, thoraicis
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54
Q

Biceps brachii: Function

A

Supinates forearm; flexes forearm at elbow joint, (most effectively when the forearm is supinated)

55
Q

Coracobrachialis: Function

A

Adducts & flexes arm at shoulder joint.

56
Q

Deltoid: Function

A

Abducts arm at shoulder joint.

57
Q

Latissimus dorsi: Function

A

Adducts, medially rotates, & extends arm at shoulder joint.

58
Q

Pectoralis major: Function

A
  • Adducts, medially rotates, & transversely adducts arm at shoulder joint
  • depresses shoulder girdle
59
Q

Teres major: Function

A

Adducts & medially rotates arm at shoulder joint.

60
Q

Triceps brachii: Function

A

Extends forearm at elbow joint.

61
Q

Infraspinatus: Function

A

Laterally rotates, transversely abducts & stabilizes arm at shoulder joint.

62
Q

Subscapularis: Function

A

Medially rotates & stabilizes arm at shoulder joint.

63
Q

Supraspinatus: Function

A

Abducts & stabilizes arm at shoulder joint.

64
Q

Teres minor: Function

A

Laterally rotates, transversely abducts & stabilizes arm at shoulder joint.

65
Q

Abductor digiti minimi: Function

A

Abducts little finger

66
Q

Flexor carpi radialis: Function

A

Flexes hand, abducts hand.

67
Q

Flexor carpi ulnaris: Function

A

Flexes & adducts hand at wrist

68
Q

Flexor digiti minimi brevis: Function

A

Flexes little finger at its metacarpophalangeal joint

69
Q

Flexor digitorum profundus: Function

A

Flexes index, middle, ring, & little fingers.

70
Q

Flexor digitorum superficialis: Function

A

Flexes index, middle, ring, & little fingers.

71
Q

Flexor pollicis brevis and longus: Function

A

Flexes thumb

72
Q

Lumbricals: Function

A
  • flexes metacarpophalangeal joint - extends interphalangeal joints of ring finger.
73
Q

Opponens digit minimi: Function

A

Opposes little finger towards thumb.

74
Q

Opponens pollicis: Function

A

Opposes thumb towards other fingers.

75
Q

Palmar interossei: Function

A

Laterally abducts finger
- flexes metacarpophalangeal joint & extends interphalangeal joints

76
Q

Palmaris longus: Function

A

Flexes hand at wrist joint; stabilizes palmar aponeurosis.

77
Q

Pronator quadratus: Function

A

Pronates forearm at radioulnar joints

78
Q

Pronator teres: Function

A

Pronates forearm at radioulnar joints.

79
Q

Abductor pollicis brevis & longus: Function

A

Abducts & extends thumb

80
Q

Dorsal interosse:i Function

A

Laterally abducts & flexes metacarpophalangeal joint & extends interphalangeal joints

81
Q

Extensor carpi radialis: Function

A

Extends hand at wrist joint; abducts hand at radiocarpal & midcarpal joints.

82
Q

Extensor carpi radialis brevis: Function

A

Extends hand at wrist joint; abducts hand at radiocarpal & midcarpal joints.

83
Q

Extensor carpi ulnaris: Function

A
  • Extends & adducts hand at wrist joint.
84
Q

Extensor digitorum: Function

A

Extends index, middle, ring & little fingers.

85
Q

Extensor pollicis brevis and longus: Function

A

Extends thumb.

86
Q

Supinator: Function

A

Supinates forearm at radioulnar joints.

87
Q

External obliques: Function

A

Flexes, laterally flexes & rotates trunk; compresses & provides support to abdo structures.

88
Q

Internal obliques: Function

A

Flexes, laterally flexes & rotates trunk; compresses & provides support to abdo structures.

89
Q

Rectus abdominis: Function

A

Flexes trunk; compresses & provides structural support to abdo structures.

90
Q

Transversus abdominis: Function

A

Compresses & provides support to abdo structures.

91
Q

Adductor brevis: Function

A

Adducts thigh at hip joint.

92
Q

Adductor longus: Function

A

Adducts thigh at hip joint.

93
Q

Adductor magnus: Function

A

Adducts, flexes & extends thigh at hip joint.

94
Q

Gracillis: Function

A

Flexes & medially rotates leg at knee joint; assists in adduction of thigh at hip

95
Q

Iliacus (iliopsoas): Function

A

Flexes thigh at hip joint; flexes trunk.

96
Q

Pectineus: function

A

Adducts and flexes thigh at hip joint.

97
Q

Psoas major (iliopsoas): Function

A

Flexes thigh at hip joint; flexes trunk.

98
Q

Sartorius: Function

A

Flexes & medially rotates leg at knee joint; assists in flexion, abduction & lateral rotation of thigh at hip joint.

99
Q

Quadriceps femoris: Function

A

Extends leg at knee joint; flexes thigh at hip joint.

100
Q

Muscles that make up the Quadriceps femoris

A
  • Rectus femoris
  • Vastus lateralis
  • Vastus medialias
  • Vastus intermedius
101
Q

Tensor facsia lata: Function

A

Assists in medial rotation, abduction & flexion of thigh at hip joint.

102
Q

Gluteus medius: Function

A

Medially rotates & abducts thigh at hip joint.

103
Q

Gluteus maximus: function

A

Extends, laterally rotates & abducts thigh at hip joint.

104
Q

Gluteus minimus: Function

A

Medially rotates and abducts thigh at hip joint.

105
Q

Gemellus: Function

A

Laterally rotates and transversely abducts thigh at hip joint.

106
Q

Obturator externus: function

A

Laterally rotates thigh at hip joint.

107
Q

Obturator internus: Function

A

Laterally rotates and transversely abducts thigh at hip joint.

108
Q

Piriformis: function

A

Laterally rotates and transversely abducts thigh at hip joint.

109
Q

Quadratus femoris: Function

A

Laterally rotates thigh at hip joint.

110
Q

Biceps femoris: Function

A

Flexes & laterally rotates leg at knee joint; extends thigh at hip joint.

111
Q

Semimembranosus

A

Flexes and medially rotates leg at knee joint; extends thigh at hip joint.

112
Q

Semitendinosus

A

Flexes and medially rotates leg at knee joint; extends thigh at hip joint.

113
Q

Extensor digitorium brevis: Function

A

Extends 2nd - 4th toes

114
Q

Extensor digitorium longus: Function

A

Extends 2nd, 3rd, 4th, & little toes; dorsiflexes foot at ankle joint.

115
Q

Extensor hallicus longus: Function

A

Extends great toe; dorsiflexes foot at ankle joint.

116
Q

Fibularis tertius: Function

A

Dorsiflexes foot at ankle joint; assists in eversion of foot

117
Q

Tibialis anterior: Function

A

Dorsiflexes foot at ankle joint; inverts foot

118
Q

Fibularis (peroneus) brevis: Function

A

Everts foot; assists in plantarflexion of foot

119
Q

Fibularis (peroneus) longus: Function

A

Everts foot; assists in plantarflexion of foot at ankle joint.

120
Q

Abductor digiti minimi: Function

A

Abducts & flexes little toe at its metatarsophalangeal joint

121
Q

Abductor hallicus: Function

A

Abducts great toe at its metatarsophalangeal joint.

122
Q

Adductor hallicus: Function

A

Adducts great toe at its metatarsophalangeal joint.

123
Q

Fexor digiti minimi brevis: Function

A

Assists in flexion of little toe.

124
Q

Flexor digitorium brevis: Function

A

Flexes 2nd, 3rd, 4th, & little toes.

125
Q

Flexor digitorium longus: Function

A

Flexes 2nd, 3rd, 4th, & little toes; plantarflexes foot at ankle joint.

126
Q

Flexor hallicus brevis: Function

A

Flexes great toe.

127
Q

Flexor hallicus longus: Function

A

Flexes great toe; plantarflexes foot at ankle joint.

128
Q

Gastrocnemius: Function

A

Plantarflexes foot at ankle joint; flexes leg at knee joint.

129
Q

Lumbricals: Function

A

flexes metatarsophalangeal joint & extends interphalangeal joints of toe.

130
Q

Plantar & dorsal interossei: Function

A

Laterally abducts metatarsophalangeal joints; flexes metatarsophalangeal joint & extends interphalangeal joints of the toes.

131
Q

Plantaris: Function

A

Assists in plantarflexion of foot at ankle joint; assists in flexion of leg at knee joint.

132
Q

Popliteus: Function

A

Medially rotates leg at knee joint; “unlocks” knee joint at beginning of knee flexion.

133
Q

Soleus: Function

A

Plantarflexes foot at ankle joint.

134
Q

Tibialis posterior: Function

A

Inverts foot; plantarflexes foot at ankle joint

Block 3: MSK (10 decks)

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